平面磨和外圆磨是通***行业里十分常见的两种磨削加工，应***十分广泛. 这两种磨削通常选***棕刚玉（A)、白刚玉（WA)或铬刚玉（PA)磨料的砂轮. 另外可以根据粗糙度和工件材料种类的不同，可以对砂轮粒度和磨料加以调整.

Su***ce grinding and cylindrical grinding aretwovery common grinding processesin thegeneral    industry, and are widely used. These twogrindingwheels usually usebrown corundum(A),white corundum (WA) or chromecorundum(PA)abrades.In addition, the grinding wheel size andabrasive can be adjustedaccordingtothe roughness and the type of workpiece material.